package jdbc;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

//指定DELETE语句
public class JDBCDemo4 {
    public static void main(String[] args) {
        //根据用户名删除用户
        try (Connection con=DBUtil.getConnection();){
            Statement stmt=con.createStatement();
            String  sql="DELETE FROM userinfo " +
                        " WHERE username='规则' ";
            int num=stmt.executeUpdate(sql);

            if (num>0){
                System.out.println("删除成功");
            }else {
                System.out.println("删除失败");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}
